Counter all other spells. Exile up to one spell countered this way instead of putting it into its owner's graveyard. You may cast that spell for as long as it remains exiled, and mana of any type can be spent to cast it.

At the beginning of your upkeep, exile the top card of target opponent's library. You may play that card for as long as it remains exiled, and mana of any type can be spent to cast it.
Spells you cast and don't own cost {1} less to cast.

Ward {2}
{U}: Spells you cast this turn can be cast as though they had flash.

Tap up to two target creatures. Put a stun counter on each artifact tapped this way.

Flying
Whenever Aqueous Drake deals combat damage to a player, scry 1.

Flying, ward {1}
Zhovala, Silver Monarch gets +1/+1 for each other Advisor you control and each Advisor card you own in exile.
Whenever another Advisor you control dies, exile it unless an opponent pays {2}. You may cast that card as long as it remains exiled.

Lifelink
Other Advisors you control have ward {1}.

Flying
When Whipwing Dragonfly enters, you gain 2 life.

Flying
When Warcast Seraph enters, put a +1/+1 counter on each other artifact creature you control.

Untap any number of target creatures. They gain flying and protection from noncreatures until end of turn.

{1}, Remove a +1/+1 counter from Traveler of Dawn: Exile target creature. Return that card to the battlefield under its owner's control at the beginning of the next end step.

Whenever Twilight Vagabond attacks, put a +1/+1 counter on it.
Cybersoul {2}{W}

When Synod of Sanctions enters, exile up to one target creature. For as long as that card remains exiled, its owner may cast it. A spell cast this way costs {1} more to cast.

Double strike

First strike
Cybersoul {4}{W}

Flying
Whenever an opponent spends mana, if it wasn't spent to cast a spell from their hand, you draw a card. This ability triggers only once each turn.

Lifelink
When this creature transforms into Reborn Follower, put a +1/+1 counter on target creature.

When Stehlian Reverend enters, put a +1/+1 counter on target creature.
Cybersoul {4}{W}

Exile target creature, then return that card to the battlefield under its owner's control. When you do, pay for and choose any number.
+{W} — Distribute two +1/+1 counters among one or two creatures you control.
+{C} — Exile that creature again. Return that card to the battlefield under its owner's control at the beginning of the next end step.
+{B} — All creatures get -1/-1 until end of turn.

Flying
Nonland permanents you control have phasing.
Whenever Spacetime Seraph phases out, until your next turn, your life total can't change and you have protection from everything.

Flying
Whenever Silversilk Emissary attacks, put a +1/+1 counter on another Advisor you control unless an opponent pays {2}.

Exile target nonland permanent with mana value less than or equal to the amount of life you've lost this turn.

Exile all creatures you don't control. Then return those cards to the battlefield tapped under their owners' control unless you've cast another spell named Second Crown's Fall this game. Then exile Second Crown's Fall.

Vigilance
Whenever this creature transforms into Crown Betrayer or another permanent you control transforms, Crown Betrayer gets +2/+0 and gains indestructible until end of turn.

Vigilance
When Royal Templar enters, target creature gets +2/+0 and gains vigilance and indestructible until end of turn.
Cybersoul {3}{W}